SoundHound's Hound app allows users to ask complex questions and get an accurate answer really fast. The app combines voice recognition and language understanding functionality to achieve this. The Houndify API allows developers to integrate it in to their own apps and hardware creations.

AISpeech is the API behind a Chinese language and pronunciation learning website, AIChinese. You may know that Chinese is a tonal language. Where tones and inflection are used in English to convey emotion or differentiate between a declarative statement and a question, in tonal languages like Chinese, different tones on the same syllable can be altogether different words. The AISpeech API gives you access to a language processing engine which is capable of detecting spoken words and evaluating if the appropriate tone is used.

The i18next API returns JSON data of localization and internationalization. With the API, developers can add translation management functions such as interpolation, plurals, nesting, and objects and...